... Street light fork height:4m~10m Solar panels:High conversion efficiency, polycrystalline silicon solar pan Adapter light:18~80wLEDLight source ... -voltage DC energy-saving lamp,Solar special low-voltage DC energy-saving lamp,Solar special low-voltage DC sodium ... Lighting time :3~8h Continuous lighting rainy days:3~6days Controller: using micro-computer chip, digital circuits, integrated sensor ...